getting "Cell contents reference from a non-cell array object" error

%%trying to read multiple text files, and store data, and plot

clc;clear all;
clc
%tic
FileList=dir('D:\Matlab2010\Filesfolder\Code for files\Textfilesreference/');
j=1;
for i=3:1:(size(FileList))
  FileName{j}=FileList(i).name;
  j=j+1;
  %disp(FileName);
end
% for i=1:size(FileName,2)
% FileDate{j} = FileName{j}(00:50);
% end
for j=1:size(FileName,2)
  fin=fopen(['D:\Matlab2010\Filesfolder\Code for files\Textfilesreference/',FileName{j}],'r');
  s=1;
  while ~feof(fin)
    tt=fgetl(fin);    %Scan all lines
    %fclose(fin);
    %disp(FileName);
    if s>=25 && s<=41
      aa=(tt);
      Desc{s-24,:}=strsplit(aa(1:47));
      Dataopen{s-24,:}=strsplit(aa(50:65));
      Dataend{s-24,:}=strsplit(aa(72:size(aa,2)));
      %         Data{s-24,:}=aa(50:size(aa,2));
      %         Data_Split{s-24,:}=strsplit(Data{s-24,:});
      
    end
    s=s+1;
  end
  for k=1:size(Dataopen,1)
    Data_All{j}{i,1}=strcat(Desc{i}{1,:});
    Data_All{j}{i,2}=Data_Split{i}{1,1};
    Data_All{j}{i,3}=Data_Split{i},{1,2};
  end
end

After I run this code i am "Cell contents reference from a non-cell array object" error Pl help

[Image Analyst]

You forgot to paste in the error message - you just snipped out a small part of it and left out the most crucial part - the line of code that cause the error! Please paste in all the red text. I can't even run this code because you didn't attach any data files, so I can't even replicate your error because it doesn't get that far.